Found via peaceable kin-dom is this interesting article from a Seattle newspaper, The Stranger, where a group of atheist/agnostic writers visit thirty faith communities (mostly churches) in Seattle and give short, funny, irreverent, eye-opening, sometimes thoughtful reflections on their experiences. Most of them don't seem open to finding meaning in the services, which isn't surprising given the nature of the assignment, but some of the reflections show that the experiences were at least thought provoking.
What would someone who was an atheist or agnostic write about attending worship at your church? I'm sure they would find some things to be quirky at St. Paul's, but hopefully they'd also find people to be genuine and friendly. The reflections are particularly harsh on 'contemporary Christian music' in worship, which may or may not surprise you, and generally the responses reflect a great fear of being singled out as a visitor - something to think about. (Have you ever been singled out as a visitor in worship before? I've had this happen, and usually am extremely embarrassed. I may stand up in front a lot, but I'm an introvert!) Anyway, interesting reading.